Patent US2962856A successfully refreshed from Google Patents.
Patent US3331971A successfully refreshed from Google Patents.
Patent US3490972A successfully refreshed from Google Patents.
US3490972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of laminating plastic films in absence of adhesive and heat sealing temperatures
Assignee: Dow Chemical Co
•
Filing: 1966-09-30
•
Granted: 1970-01-20
•
Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 Claude E Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:18
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/108; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31935
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2988134A
Cited
US3081212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |